Pith Number

pith:G4W4CIVN

pith:2009:G4W4CIVN3WRPAXFNLIFQLAAAS5

not attested not anchored not stored refs pending

First-Principles Study of Electron Linewidths in Graphene

Catalin D. Spataru, Cheol-Hwan Park, Feliciano Giustino, Marvin L. Cohen, Steven G. Louie

arxiv:0902.3638 v1 · 2009-02-20 · cond-mat.mtrl-sci

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{G4W4CIVN3WRPAXFNLIFQLAAAS5}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-04T15:38:27.053022Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

372dc122addda2f05cad5a0b058000976f5886b62cba650b5f2d0f94edb5eabf

Aliases

arxiv: 0902.3638 · arxiv_version: 0902.3638v1 · doi: 10.48550/arxiv.0902.3638 · pith_short_12: G4W4CIVN3WRP · pith_short_16: G4W4CIVN3WRPAXFN · pith_short_8: G4W4CIVN

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/G4W4CIVN3WRPAXFNLIFQLAAAS5 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 372dc122addda2f05cad5a0b058000976f5886b62cba650b5f2d0f94edb5eabf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f81d405f9c531e1fa342ae2def0bfc293b8164a6c37acc7dc8720c07132febed",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2009-02-20T18:37:10Z",
    "title_canon_sha256": "90153d1172824f23e82ecf8c97a9fc784c07bdd1f8c10f3521e02a9dbc8e2cb1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.3638",
    "kind": "arxiv",
    "version": 1
  }
}